int cmd_lookup(int argc, char *argv[]) { struct nb_ctx *ctx; struct sockaddr *sap; char *hostname; int error, opt; if (argc < 2) lookup_usage(); error = nb_ctx_create(&ctx); if (error) { smb_error("unable to create nbcontext", error); exit(1); } if (smb_open_rcfile() == 0) { if (nb_ctx_readrcsection(smb_rc, ctx, "default", 0) != 0) exit(1); rc_close(smb_rc); } while ((opt = getopt(argc, argv, "w:")) != EOF) { switch(opt) { case 'w': nb_ctx_setns(ctx, optarg); break; default: lookup_usage(); /*NOTREACHED*/ } } if (optind >= argc) lookup_usage(); if (nb_ctx_resolve(ctx) != 0) exit(1); hostname = argv[argc - 1]; /* printf("Looking for %s...\n", hostname);*/ error = nbns_resolvename(hostname, ctx, &sap); if (error) { smb_error("unable to resolve %s", error, hostname); exit(1); } printf("Got response from %s\n", inet_ntoa(ctx->nb_lastns.sin_addr)); printf("IP address of %s: %s\n", hostname, inet_ntoa(((struct sockaddr_in*)sap)->sin_addr)); return 0; }
/* * Verify context before connect operation(s), * lookup specified server and try to fill all forgotten fields. */ int smb_ctx_resolve(struct smb_ctx *ctx) { struct smbioc_ossn *ssn = &ctx->ct_ssn; struct smbioc_oshare *sh = &ctx->ct_sh; struct nb_name nn; struct sockaddr *sap; struct sockaddr_nb *salocal, *saserver; char *cp; u_char cstbl[256]; u_int i; int error = 0; ctx->ct_flags &= ~SMBCF_RESOLVED; if (ssn->ioc_srvname[0] == 0) { smb_error("no server name specified", 0); return EINVAL; } if (ssn->ioc_user[0] == 0) { smb_error("no user name specified for server %s", 0, ssn->ioc_srvname); return EINVAL; } if (ctx->ct_minlevel >= SMBL_SHARE && sh->ioc_share[0] == 0) { smb_error("no share name specified for %s@%s", 0, ssn->ioc_user, ssn->ioc_srvname); return EINVAL; } error = nb_ctx_resolve(ctx->ct_nb); if (error) return error; if (ssn->ioc_localcs[0] == 0) strcpy(ssn->ioc_localcs, "default"); /* XXX: locale name ? */ error = smb_addiconvtbl("tolower", ssn->ioc_localcs, nls_lower); if (error) return error; error = smb_addiconvtbl("toupper", ssn->ioc_localcs, nls_upper); if (error) return error; if (ssn->ioc_servercs[0] != 0) { for(i = 0; i < sizeof(cstbl); i++) cstbl[i] = i; nls_mem_toext(cstbl, cstbl, sizeof(cstbl)); error = smb_addiconvtbl(ssn->ioc_servercs, ssn->ioc_localcs, cstbl); if (error) return error; for(i = 0; i < sizeof(cstbl); i++) cstbl[i] = i; nls_mem_toloc(cstbl, cstbl, sizeof(cstbl)); error = smb_addiconvtbl(ssn->ioc_localcs, ssn->ioc_servercs, cstbl); if (error) return error; } if (ctx->ct_srvaddr) { error = nb_resolvehost_in(ctx->ct_srvaddr, &sap); } else { error = nbns_resolvename(ssn->ioc_srvname, ctx->ct_nb, &sap); } if (error) { smb_error("can't get server address", error); return error; } nn.nn_scope = ctx->ct_nb->nb_scope; nn.nn_type = NBT_SERVER; strcpy(nn.nn_name, ssn->ioc_srvname); error = nb_sockaddr(sap, &nn, &saserver); nb_snbfree(sap); if (error) { smb_error("can't allocate server address", error); return error; } ssn->ioc_server = (struct sockaddr*)saserver; if (ctx->ct_locname[0] == 0) { error = nb_getlocalname(ctx->ct_locname); if (error) { smb_error("can't get local name", error); return error; } nls_str_upper(ctx->ct_locname, ctx->ct_locname); } strcpy(nn.nn_name, ctx->ct_locname); nn.nn_type = NBT_WKSTA; nn.nn_scope = ctx->ct_nb->nb_scope; error = nb_sockaddr(NULL, &nn, &salocal); if (error) { nb_snbfree((struct sockaddr*)saserver); smb_error("can't allocate local address", error); return error; } ssn->ioc_local = (struct sockaddr*)salocal; ssn->ioc_lolen = salocal->snb_len; ssn->ioc_svlen = saserver->snb_len; if (ssn->ioc_password[0] == 0 && (ctx->ct_flags & SMBCF_NOPWD) == 0) { cp = getpass("Password:"); error = smb_ctx_setpassword(ctx, cp); if (error) return error; } ctx->ct_flags |= SMBCF_RESOLVED; return 0; }